Re: Long AS Path

[Mel Beckman <mel () beckman org>]

Why not ask the operator why they are pretending this path? Perhaps they have a good explanation that you haven't 
thought of. Blindly limiting otherwise legal path lengths is not a defensible practice, in my opinion.

 -mel beckman

On Jun 21, 2017, at 1:36 PM, "sthaug () nethelp no" <sthaug () nethelp no> wrote:

> > > I see no valid reason for such long AS paths. Time to update filters
> > > here. I'm tempted to set the cutoff at 30 - can anybody see a good
> > > reason to permit longer AS paths?
> >
> > Well, as I mentioned in my Net Neutrality filing to the FCC, a TTL of 30
> > is OK for intra-planet routing, but when you start leaving the big blue
> > marble you will need to allow the packets to live longer.
>
> TTL != AS path length
>
> I can certainly see the use for a TTL of 30. I cannot see the use for
> an AS path length greater than 30 (especially not when 2 ASes are each
> repeated 16 times).
>
> Steinar Haug, Nethelp consulting, sthaug () nethelp no